.content {
  position: absolute;
  width: 100%;
  height: calc(100% - 54px);
  left: 0;
  top: 54px;
  box-sizing: initial;
  border-top:solid #04288159;
}

//左侧菜单内容
.leftcontent {

}

/*右边内容*/
.rightcontent {
  position: absolute;
  left: 60px;
  top: 0;
  height: calc(100% - 20px);
  width: calc(100% - 80px);
  padding: 10px;
  background: #ebf0f3;
  overflow: hidden;
  border-left: 2px solid rgb(226, 231, 243);
}
.collapsecontent {
  left: 160px;
  width: calc(100% - 180px);
}
.formcon {
  position: absolute;
  height: calc(100% - 20px);
  width: calc(100% - 20px);
}